1307044640 has 96 divisors (see below), whose sum is σ = 3394923840. Its totient is φ = 471577600.

The previous prime is 1307044601. The next prime is 1307044657. The reversal of 1307044640 is 464407031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227726 + ... + 233394.

It is an arithmetic number, because the mean of its divisors is an integer number (35363790).

Almost surely, 2^1307044640 is an apocalyptic number.

1307044640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1307044640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1697461920).

1307044640 is an abundant number, since it is smaller than the sum of its proper divisors (2087879200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1307044640 is a wasteful number, since it uses less digits than its factorization.

1307044640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5826 (or 5818 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 1307044640 is about 36153.0723452378. The cubic root of 1307044640 is about 1093.3607353169.

The spelling of 1307044640 in words is "one billion, three hundred seven million, forty-four thousand, six hundred forty".